Programm Photovoltaik Ausgabe 2008 ... - Bundesamt für Energie BFE
Programm Photovoltaik Ausgabe 2008 ... - Bundesamt für Energie BFE
Programm Photovoltaik Ausgabe 2008 ... - Bundesamt für Energie BFE
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
5/8<br />
Aged at<br />
470 nm<br />
Aged at<br />
589 nm<br />
Ref.<br />
CR0S04 in ethyl acetate after 100<br />
hours irradiation in LED light at 470<br />
and 589 nm.<br />
O.D.<br />
1.2<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
CRS40 in EEE - irradation test 100 hours<br />
CRS40 before irradiation<br />
CRS40 100 h amber LED<br />
CRS40 100 h blue LED<br />
0<br />
200 400 600<br />
Wavelength in nm<br />
800 1000<br />
UV-Vis spectra of CRS040 ethyl acetate solutions before<br />
and after LED lamp irradiation for 100 hours kept at<br />
room temperature.<br />
WP 4.3 Flat Plate Concentrators (FPC) stability testing in 470 nm high intensity LED light<br />
The 5 x 5 cm sized flat plate concentrator (FPC) samples received from ECN, 740C, 742C, 747C and<br />
749C were fitted with high efficiency Si-solar cell of 5 x 50 mm size. The sample 74C (yellow colored)<br />
was kept in the dark as reference. The 3 other samples were exposed to blue LED intense monochromatic<br />
light for over 700 hr, the short-circuit photocurrent of the attached Si-cell, the UV-VIS spectra, the<br />
fluorescence (normalized) and the external quantum efficiency were measured periodically over time.<br />
For the sample 740C, UV-VIS spectra were only acquired at start of the experience, as this plate was<br />
fitted with mirrors on all sides later on for the rest of the time in the LED lamp.<br />
The flat plate concentrator samples in the 470 nm<br />
LED lamp<br />
Sample types:<br />
Flat Plate Concentrators (received from ECN)<br />
FPC740 - fitted with 3 x 50 mm c-Si cell + mirrors<br />
= 0.0045 % L. F Yellow 170<br />
FPC742 (Yellow - not aged in blue LED)<br />
= 0.004 % L. F Yellow 083<br />
FPC747 - fitted with 3 x 50 mm c-Si cell<br />
= 0.01 % L. F Red 305 + 0.004% L.F. Yellow 083<br />
FPC749 - fitted with 3 x 50 mm c-Si cell<br />
= 0.01 % L. F Red 305 + 0.003% CRS 040�<br />
The table below show the change of photocurrent for the 3 samples exposed to the 470 nm blue LED<br />
light for about 700 hours.<br />
Sample Current at start<br />
(mA)<br />
FPC740C<br />
87.1 (in CDM-1000 lamp)<br />
(with mirrors on all sides) 92.0 (in blue LED)<br />
FPC747C 55.7 (in CDM-1000 lamp)<br />
56.8 (in blue LED)<br />
FPC749C 56.9 (in CDM-1000 lamp)<br />
56.8 (in blue LED)<br />
FULLSPECTRUM, T. Meyer, Solaronix<br />
Current after 685 hr (mA) Change in<br />
current<br />
76.8<br />
82.1<br />
51.5<br />
49.9<br />
55.5<br />
54.6<br />
- 11.8 %<br />
- 10.7 %<br />
- 7.5 %<br />
- 12.1 %<br />
- 2.5 %<br />
- 3.9 %<br />
Seite 127 von 288
Change language